EP 2821531 B1 20160817 - Method and apparatus for refurbishing turbine components
Title (en)
Method and apparatus for refurbishing turbine components
Title (de)
Verfahren und Vorrichtung zur Aufarbeitung von Turbinenkomponenten
Title (fr)
Procédé et appareil de remise à neuf de composants de turbine
Publication
Application
Priority
US 201313932341 A 20130701
Abstract (en)
[origin: EP2821531A1] A refurbishing method, refurbishing apparatus and refurbished article are provided. The refurbishing method includes accessing a plurality of rotatable components attached to a turbine assembly, the turbine assembly being a portion of a turbomachine, providing a predetermined volume of a buffered electrolytic solution in an electro-polishing tank, coupling the plurality of rotatable components to a power supply, immersing an immersion portion of at least one of the plurality of rotatable components in the buffered electrolytic solution, passing an electrical energy through the immersion portion of at least one of the plurality of rotatable components while the immersion portion is immersed in the buffered electrolytic solution, wherein an electrical flux to the immersion portion electro-polishes the immersion portion, separating the immersion portion from the buffered electrolytic solution, and applying a corrosion inhibitor to the plurality of rotatable components.
IPC 8 full level
CPC (source: EP US)
B23H 9/10 (2013.01 - US); C25F 3/16 (2013.01 - EP US); C25F 7/00 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2821531 A1 20150107; EP 2821531 B1 20160817; CN 104278316 A 20150114; CN 104278316 B 20181019; JP 2015034338 A 20150219; JP 6392002 B2 20180919; US 2015001086 A1 20150101; US 9163322 B2 20151020
DOCDB simple family (application)
EP 14174703 A 20140627; CN 201410305691 A 20140630; JP 2014129761 A 20140625; US 201313932341 A 20130701